Question 1 :
State true or false. Grain and husk can be separated with the process of decantation.

Question 2 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6edf59b460d7261e658.jpg' /> How does the farmer separate grain seeds from those bundles of stalks in the given above figure?

Question 3 :
A person mixes some soil to water in a glass and lets it stand for half an hour. Some soil settles at the bottom of water. Now, he slightly tilts the glass without disturbing the water and lets the water from the top flow into another glass as shown in the figure. What will you call this process?

Question 4 :
Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving sugar?

Question 5 :
A person makes a mixture of dry sand with sawdust or powdered dry leaves and keeps this mixture on a plate or a newspaper. Now, he takes the mixture to an open ground and stands on a raised platform. Next, he puts the mixture in a plate or sheet of paper and holds the plate or the sheet of paper containing the mixture, at his shoulder height while tilting it slightly, so that the mixture slides out slowly. Is there a component that blows away?

Question 6 :
Write the method of separation of the following pair of compounds: Iron powder mixed with flour

Question 7 :
The method of separating seeds of paddy from its stalks is called ______ .

Question 8 :
State whether the following statements are TRUE or FALSE : A mixture of iron filings and rice flour can be separated by magnet.

Question 9 :
A person mixes some soil to water in a glass and lets it stand for half an hour. Some soil settles at the bottom of water. Now, he slightly tilts the glass without disturbing the water and lets the water from the top flow into another glass as shown in the figure. Is the water in the second glass still muddy or brown in colour?

Question 10 :
A student brings a packet of food grain purchased from a shop to the classroom. Now, he spreads the grains on a sheet of paper. Are there pieces of stone, husks, broken grain and particles of any other grain in it?

Question 11 :
Which method of separating tea leaves from prepared tea is better, decantation or filtration?

Question 12 :
Write the method of separation of the following pair of compounds: Lady's finger mixed with french beans

Question 13 :
Fill in the blank: The method of separating seeds of paddy from its stalks is called ___________.

Question 14 :
A person makes a mixture of dry sand with sawdust or powdered dry leaves and keeps this mixture on a plate or a newspaper. Next, he looks at this mixture carefully. Would it be possible to separate the components by handpicking?

Question 15 :
Read the story 'WISE FARMER' and choose the correct option to complete the story. She grounded the wheat grains and __________ the flour.

Question 16 :
Fill in the blanks with appropriate words: Filtration is helpful in separating an insoluble solid from a ____________.

Question 17 :
Why do we need to separate different components of a mixture?

Question 18 :
How would you obtain clear water from a sample of muddy water?

Question 19 :
A Person brings a sieve and a small quantity of flour from home, to the class. He then sieves the flour to separate any impurities in it. Now, he makes a fine powder of chalk pieces and mixes it with the flour. Can he separate the flour and the powdered chalk by sieving?

Question 20 :
Write the method of separation of the following pair of compounds: Salt mixed with water